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+--- Thread: humidifier working when set to zero? (/Thread-humidifier-working-when-set-to-zero)
humidifier working when set to zero? - Benzi - 11-29-2020
Hi guys
I think I read somewhere in the forum about someone using their humidifier set to zero. I have the S9 humidifier. I typically set it around 3. I'm not sure I understand exactly how the thing works. If I set it to zero, is the humidifier adding any humidity to my airflow?
RE: humidifier working when set to zero? - Benzi - 11-29-2020
And another question, if I may: Does the amount of water in the humidifier have any impact on its noise?
RE: humidifier working when set to zero? - SarcasticDave94 - 11-29-2020
Humidifier at zero with water in the tub will add water that the air collects as it passes over the water. Unless you are getting rainout / water collecting in the hose, it should not be louder with more moisture. If you do not have a heated hose, water can collect and make gurgling noises.
RE: humidifier working when set to zero? - sheepless - 11-29-2020
I use passive humidification, keeping water in the tank but without turning it on. while I regularly have sneezing, congestion & runny nose for an hour or two after shutting the machine down, adding active humidification seems to make it worse. a tankful lasts about a week in roughly 50 to 60% ambient humidity in my house.
others may differ but in 4 years with 3 different types of resmed machines, I haven't noticed a noise difference relative to the humidifier. (otoh, higher pressure is noticeably noisier.)
RE: humidifier working when set to zero? - mesenteria - 11-29-2020
Humidity where I live is never less than 50%. However, I do much better on CPAP if I have water in the reservoir. I sometimes raise the tube temperature for comfort, but my humidity is always at 1 or 0. It takes four-to-five days for the water in the reservoir to evaporate. But, that's exactly what happens as 50% humidity air passes over the surface of the water. So, yes, your humidity rises just by having the machine pass room air over the water surface inside the reservoir.